SlideServe
Télécharger Obtenir Pro
Menu
Accueil Pro
Préférences
ApparenceLight Aide et commentaires
© SlideServe · v2026

Coral Bleaching

bendek avatar
bendek
12 diapositives · 471 Views · Aug 04, 2014

Coral Bleaching. Created By: Melissa Brown. Background Info on Coral Reefs. Where do you find coral reefs? Coral reefs are found in shallow tropical waters along the shores of islands and continents. Corals live in very nutrient poor waters

#coral bleaching #coral bleaching ppt #powerpoint #presentation
Coral Bleaching - slide 1
01 / 12Coral Bleaching
1 / 17

Télécharger la présentation

Coral Bleaching
Une image / un lien ci-dessous est fourni (tel quel) pour télécharger la présentation

Politique de téléchargement : le contenu du site vous est fourni TEL QUEL pour votre information et votre usage personnel ; il ne peut être vendu, concédé sous licence ni partagé sur d’autres sites sans l’accord de son auteur.Le contenu vous est fourni TEL QUEL, pour votre information et votre usage personnel uniquement. Téléchargez la présentation en cliquant sur ce lien. Lors du téléchargement, si vous ne parvenez pas à télécharger une présentation, l’éditeur a peut-être supprimé le fichier de son serveur.Pendant le téléchargement, si vous ne parvenez pas à obtenir une présentation, le fichier a peut-être été supprimé par l’éditeur.

F I N

Plus de contenu associé

Transcription de la présentation

  1. Coral Bleaching Created By: Melissa Brown

  2. Background Info on Coral Reefs • Where do you find coral reefs? • Coral reefs are found in shallow tropical waters along the shores of islands and continents. • Corals live in very nutrient poor waters • Sensitive to water temperature, salinity, UV radiation, and nutrient quantities

  3. Coral Reefs and Zooxanthellae • Corals and Zooxanthellae (algae) have a symbiotic relationship • Most coral depend on these algae to stay healthy • The algae give the coral food • The Corals give the algae a place to live. • When the corals catch prey, the prey provide nitrogen for the corals and then the corals pass some to the algae. • What is this relationship called? • Mutualism!!!!!!

  4. What is Coral Bleaching? • When coral expel the algae that live symbiotically with them • Weakens the coral – could lead to die offs

  5. *When the algae leave, they cause the coral to loose its color* • Anything that affects the coral's ability to supply the zooxanthellae with nutrients for photosynthesis will cause the algae to be expelled.

  6. Causes of bleaching • Sedimentation • High particle levels in rivers float into the ocean and cloud the water • NOT allowing photosynthesis to happen.

  7. Carbon Dioxide Carbon Dioxide- Corals in waters with large amounts of carbon dioxide form weaker skeletons Why is there carbon dioxide in the atmosphere? Burning fossil fuels This makes them more vulnerable to damage from waves, careless tourists, and destructive fishers.

  8. Ocean Warming As the ocean warms up, it causes the algae to leave the coral

  9. Effects on other organisms • Coral reefs are the base for most food chains in the ocean. • The fish populations that used the coral as a habitat would be vulnerable to predators.

  10. The Great Barrier Reef • Where is it? • Coral Sea, off the coast of Australia • Main cause of bleaching? • Ocean warming • Chemical runoff • runoff of nitrogen-based pesticides from local farming areas 

  11. 4 Steps to prevent bleaching •  Recycle. • Slow climate change • Don't use chemically enhanced pesticides and fertilizers • Conserve water. The less water you use, the less runoff and waste water that eventually finds its way back into the ocean. http://www.youtube.com/watch?v=aEdoizgeNJk&feature=player_detailpage

  12. Works Cited… • www.marinebiology.org/coralbleaching • oceanservice.noaa.gov • www.blue-oceans.com